diff options
| -rw-r--r-- | changelog.d/15074.bugfix | 1 | ||||
| -rw-r--r-- | synapse/federation/federation_client.py | 11 |
2 files changed, 6 insertions, 6 deletions
diff --git a/changelog.d/15074.bugfix b/changelog.d/15074.bugfix new file mode 100644 index 0000000000..d1ceb4f4c8 --- /dev/null +++ b/changelog.d/15074.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug where federated joins would fail if the first server in the list of servers to try is not in the room. diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index 0ac85a3be7..7d04560dca 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -884,7 +884,7 @@ class FederationClient(FederationBase): if 500 <= e.code < 600: failover = True - elif e.code == 400 and synapse_error.errcode in failover_errcodes: + elif 400 <= e.code < 500 and synapse_error.errcode in failover_errcodes: failover = True elif failover_on_unknown_endpoint and self._is_unknown_endpoint( @@ -999,14 +999,13 @@ class FederationClient(FederationBase): return destination, ev, room_version + failover_errcodes = {Codes.NOT_FOUND} # MSC3083 defines additional error codes for room joins. Unfortunately # we do not yet know the room version, assume these will only be returned # by valid room versions. - failover_errcodes = ( - (Codes.UNABLE_AUTHORISE_JOIN, Codes.UNABLE_TO_GRANT_JOIN) - if membership == Membership.JOIN - else None - ) + if membership == Membership.JOIN: + failover_errcodes.add(Codes.UNABLE_AUTHORISE_JOIN) + failover_errcodes.add(Codes.UNABLE_TO_GRANT_JOIN) return await self._try_destination_list( "make_" + membership, |